New to salt, simple question

This is a discussion on New to salt, simple question within the Beginner Saltwater Aquariums forums, part of the Saltwater Fish and Coral Reef Tanks category; -->
I only have one question and it's a simple one...... I hope. I'm wanting to set up a reef tank with reef safe fish. ...

I only have one question and it's a simple one...... I hope. I'm wanting to set up a reef tank with reef safe fish. I'm almost ready to start purchasing live rock and such. My question is, would putting an 18 inch airstone at the bottom do any type of damage to rock or fish?

No, it won't, but it will give you one hellofa salt creep problem. Skimmer work off the same idea as an air bubbler, the bubbles capture garbage in the water coumn, and when they hit the water surface and pop, yoiu will get that dark crap on your tank, and also salt creep on top of that. But, you can use them.